Fluid-pressure means for forcing fuel into internal-combustion engines.



0. H. DUNTON. I FLUID PRESSURE MEANS FOR. FORGI NG FUEL INTO INTERNAL COMBUSTION ENGINES.

APPLIGATION FILED F3116, 1913.

1 1 1 2, 1 24, Patented Sept. 29, 1914.

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CHARLES H. DUNTON, 01F JLQDI, (JALIE OZRNIA.

FLUID-PRESSURE MEANS FOR FORCING- FUEL INTO IN'TERN'ALCOMBUSTION EI Z'GIIQ'ES.

specification of Letters Patent.

Patented Sept. es, rein.

Application filed February s, 1913. Serial No. 746.5%.

skilled in the art to which it appertains tomake and use the same, reference being bad to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this application.

This invention relates to-improvements in internal combustion engines and is particu larly designed to be applied to that type of internal combustion engine known as the Diesel engine.

The object of the invention is to produce a means whereby the combustion of the engine may be utilized for placing the fuel supply under pressure in the supply tank and also provide a means for cerrying the fuel under pressure from the fuel inlets into the cylinders of the engine.

A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceedingly effective for the purposes for which it is designed.

These objects, I accomplish by means of such structure and relative arrangement of the parts as will fully appear by a perusal of the following specification and claims.

@n the drawings, similar characters oi reference indicate corresponding parts in' the several views.

Figure 1 is a sectional view of it two cycle engine showing my improved structure attached thereto. taken on a line X-X of Fig. 1. Fig. 3 is a side elevation of the engine on a. reduced scale. Fig. 4 is a sectional View showing an air inlet port.

Referring now more particularly to the characters of reference on the drawings, the numeral 1 designates the crank case of the engine communicating with which is the cylinder 2 having the usual two cycle engine air passageway 3, and exhaust port l, and air inlet port 5.

The numeral 6 designates the head of the cylinder 2 and disposed in said cylinder 2 against said head 6 is a disk 7 having; a cen- Fig. 2 is a sectional viewtral concave opening- 8 communicating with a valve 9 in the said head 6, said valve 9 having a stem 10 projecting upwardly and connected by a link 11 with a rod 12 operated by a connecting linlnl; from the fly wheel. i l for the purpose of opening said. valve with each revolution of said fly wheel in the usual manner, no claim being laid to this feature. A gasket 15 is interposed between the disk 7' and head 6 to keep the disk 7 hot for the usual purpose. Said disk 7 is pro-,

vidcd with a circumferentially disposed port 16 communicating from a cylinder 2 through a port 17 in the heed 6 and a valve 18 into an independent chamber 19 disposed above the said head 6 and-communicating with the cylinder 2 by means of the valve 9 and. the opening 8. The numeral 20 designates the fuel supply receptacle which has a pipe communicating with a chambered member #28 on the head 6, the same having ports 24; communicating with the valve 9.

As is a well known fact the explosive pressure of a motor is naturally much. greater than the compressionpressure and it is this well known fact that is the basis of the operation of my improved pressure means for supplying the liquid fuel to the ignition plate of the motor. Vlhen the explosion takes place in the cylinder of the engine a part of that explosive pressure passes through the annular port 16 and through the' valve 18 and into the chamber 19. The valve 18 then closes holding said pressure in the chamberlll and of course this pressureis not'constant but is at all times greater than the compression pressure in the cylinder of the motor. This pressure is then communicated through. the pipe 26 leading from the chamber 19't-o the fuel supply tank 20, thus placing said tank under pressure to force the i'uel through the pipe 22 into the chamber 23 disposed at the bottom of themember 19 which keeps the fuel supply always in the chamber 23 ready for use when the vslve 9 opens. Then when the valve 9 opens, the fuel or a slight portion thereof is "lorced through the ports 24- by pressure in the member 20 end then the pressure from the chamber 19 blows or wipes this fuel into the cylinder throu 'h the valve 9 and then the heat of the ring? ignites it causing an explosion and then the ahoye operation is repeated.

I lay no claim to the specific form of engine but merely to the device for maintaiir ing the fuel supply under pressure and passtail the present and preferred construction of the device, still in'practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention.

Having thus described my invention what l claim as new and useful and desire to secure by Letters Patent is:

1. A device of the character described comprising the combination with a cylinder, and a piston operating in said cylinder, of an independent chambered member disposed above said cylinder, a valve adapted to communicate from said cylinder to said chambered member when an explosion takes place in said cylinder, a chambered member disposed within said first named chambered member and having ports communicating with said cylinder, a valve forming a normal closure for said ports and adapted to be Operated with the operation of said piston,

a fuel supply means communicating with said last. named chambered member, said last named chambered member having ports communicating from said first named chambered member to said valve, as described.

2. A device of the character described comprising the combination with a cylinder and a piston operatingin said cylinder, of a chambered member disposed above said cylinder, a valve adapted to communicate from said cylinder to said chambered member when an explosion occurs in said cylinder, at chambered Il'lGll'llJGI disposed within said first named chambered member and having; ports adapted to communicate with said cylinder, a valve forming a normal closure for said ports and adapted to be 0 ened with the operation of said piston, a 1101 supply means communicating with said last named chambered member, said last named chambered member having ports communicating from said first named chambered member to said last namied valve, and means communica ting from said first named chambered member to said fuel supply means, as described.

In testimony whereof I ailix my signature in presence of two witnesses.

CHARLES ll. DUNTON.

Witnesses: V

STEPHEN M. Bnnwn'rr, CLARENCE M. SMITH. 

